To fix this, we'll just reset the partitions on the drive and 'reallocate' all of the space as a new, single partition. Modems and certain streaming data devices, such as speakers and Web cams. That's likely what happened to your drive. Although your host operating system must support USB, you do not need to. I'd lost a huge chunk of my drive's storage capacity! Fortunately I found a fix, and if this has happened to you, rest assured that the fix is surprisingly simple.Īs it turns out, the USB drive's partitions had been tampered with, leaving most of the drive 'unallocated' and inaccessible. For example, you can use a USB drive to lock and unlock your computer as well as carry around portable apps everywhere you go.Īs for me, I mostly use them as bootable drives for ISO files, which comes in handy when I want to try new flavors of Linux or turn a bricked laptop back into a Windows machine.īut I recently ran into a weird problem: I'm not sure how, but my 4 GB USB drive was suddenly showing up as a 100 MB USB drive. now u r saying it is showing but could not be open. exclamation mark indicates the device has a conflict and is not working correctly.

earlier u said it is not showing the icon itself. A list of items to check to troubleshoot USB problems in your system. They're useful for so many things beyond just transferring files between devices. If it is showing the icon, definitely it has to open in disk management. I play around a lot with my USB flash drives.

My pendrive is not showing the data